Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2017-03-01

Journal: ASIAN JOURNAL OF CONTROL

Included Journals: EI、SCIE

Volume: 19

Issue: 2

Page Number: 787-791

ISSN: 1561-8625

Key Words: Multi-area power systems; time delays; load frequency controller failure (LFCF); switched systems

Abstract: This paper investigates the exponential stability problem for a class of multi-area power systems with time delays under load frequency controller failures (LFCFs). For describing the phenomenon of LFCFs, the considered multi-area power system is rewritten as a switched system with multiple time delays. By adopting the switching technique, the exponential stability conditions for multi-area power systems are developed when the controller failure frequency and the unavailability ratio of the controller are restricted. Finally, one example is given to show the applicability of the proposed method.